Clarification on PyCharm AI

I am trying to evaluate whether the PyCharm AI Assistant is viable for my day-to-day development workflow, and I need clarification on pricing, quota consumption, and expected usage patterns.

Here is what I have observed so far:

1. I tried the free quota (equivalent to approximately $3). It was exhausted before I could complete a useful workflow, specifically refining a single function in a single file. This took only a handful of requests.

2. After the quota reset a few days later, I did not actively use the assistant at all. Nevertheless, after about one week, the remaining balance dropped from $3 to $1.72. I would like to understand what activity (if any) can consume credits in the background, or whether this indicates some form of automatic or passive usage.

To properly assess feasibility, I need concrete estimates:

- What is the approximate cost of one “real” request consisting of:

   - an initial prompt that analyzes ~50 files,

   - modifies ~5 of them,

   - followed by roughly a dozen iterative follow-up prompts to refine the changes?

- I perform, on average, about 5 such workflows per day using Codex CLI today. Based on your pricing model, what would be the estimated daily cost of doing this with the PyCharm AI Assistant?

At face value, the current credit burn rate suggests that this level of usage could become prohibitively expensive very quickly. If the realistic cost is orders of magnitude higher than typical IDE subscriptions or competing tools, I need to understand whether this is an expected outcome or whether I am misinterpreting how credits are intended to be used.